Shoe upper trimming machine



April 12, 1949. H, E| |0TT ET AL '2,466,798 SHOE UPPER TRIMMING MACHINE I Filed March 5, 1948 v @sheets-sheet 1'- 1 'Azvezaabrs Harold Eouo 1949. H. E. ELLIOTT Erm. 2,466,798

SHOE UPPER TRIMMING MACHINE l April 12,

6 Sheets-Sheet 2 Filed March 5; 1948 April '12, 1949. H. E.- ELLIOTT ETAL I 2,466,798

SHOE UPPER TRIMMING MACHINE April 12, 1949. HjE, ELUOTT -FAL 2,466,798

SHOE UPPER TRIMMING MACHINE Filed March 5, 1949 e sheets-sheet 4 April 12, 19491. H E ELLloT-r ETAL 2,466,798

SHOE UPPER TRIMMING MACHINE 6 sheets-sheet 5 y Filed March 3, '1948 IWVW..

Inwaenlors v Hmmm 1E EN April 12, 1949 v H. E. ELLIOTT ETAL I 2,466,798-

4 SHOE UPPER TRIMMINGMACHINE Filed March 5, 194e e sheets-sheet e l `l 1h111vamnflllwru f" Harold, :E :im lidi; /I :Er Y- Dam@ Fig.; Mv

Patented Apr. 12, 1949 YNew Jersey applieaiiemMarehes,1948;serianieizliss In Great Britain Marchal, 1947 `2 ne :'o'r more "scrapersfor rwipers may libe vie'cat'e areahcsieeefinie maschine. "frhefserapersaifehe ri'giiiaiianaisiiie the maehine are larrayrig-ee te force the right-@hand lastiri-g -`vmargin Yef the jshoe iippfer 'to the 'irigiinjand Jthe serapers located "at the left-liana side kif "the machine are A'arranged t'o'ior'ce `vthe le`ftihandiasting margin "to the left. The 'acti'omef trie serapers on they opposite margins "of "the shoe 'upper precedes *the trimming operation. e i w Y F'In L'acoorianceiwith another I"reatiirel of *tiiei'n- Venti'n :the illustrated machine iis "provided ewith a pair of 'at, eircii'iar, "diskjkniveswhich fare Carilieonthe'aboveinentioned slide thatcarries thejscraneis. Tl'iereis iprovide a *power-'driven kriirereperatirig mechanism arranged *te rotate the sknivesin"i015p=es`ite directions -`suh that one qf thefknive's will u'sever tiie right-,hand fmar'ginf the iiinin'g` andjtiieother "knilfxe'fwill lsever the leftiianniaiginf th'eel'inin'g. The cdraw `cut vdueto rotatingtlieknive'sas Ithey "advance over lth'e toe portion-"oftheshoe is especially effective` for trimmingiiriiiigsrnaue eftextiie materials. To insure the best resultstiie knive's'farefrot'ateii in directions "tiiat enable "their citting vlsegr'nen'ts to :move awayifrom'thefperiinter of the'insole towardfthe perimeter' of the oiittu'rne. margin foi the iip'per, thereby "tensioning lthat VVAmargin 4'Widtliv'lse away 'fr'omitheinsle "These andfthjer 'features' 'off the l-ini/entio'n Wll new "be `ries'cbedl in lAdetail with 'reference vto Y*the acoorripanying drawings Aand :will "be 'pinte'dou't inft`h'efalppe'ndei` lrns -Intiiedrawinaa y Fig. 1 is a view inside elevation fof A'asimeupper l`triinniirig "machine -in which fthe present inventionfisiembddied; A i FwFig. 2 l.isfa ypian *VieW of the Liiinbhiti'e LShOW'Ii in igf-I;

y"."i'en f3 is sa fffrntiiew of l"part "of "themal'ine fFig'. 1:fisafsiiil'ilwilling'the 1ih`e V--IV f Fi'g."3;

ig. 5 -is "a n'rear `vv'vi'ew of upper-pressing fingers "Figf'f'is 'a viewin's'ide elevation of 'part'o'ftiie machine; l A Fie "'7 is "a .perspective or "the upper-pressing *fingers* illiistratedin Fig. l5;

'Fi'g.z\8 'is 'airontview dinars 'servin'gtoiift 'the "margin "o"f "the "'sho'e' iip'per and -turn it outward; Tig. 9 is 'aflln View f the "bars illustratdin Figi;

FigsffQtoilZ "are pianviewsoi the Bars, upper- .pressin'g lingers and knives in operation `iipon a 3 ling the movementl of the bars illustrated in Fig.8;

Fig. 16 is a detailed view of part of the machine as illustrated in Fig. 6;

Fig. 17 is a front view of part of the machine showing the driving pulleys; and

Fig. 18 shows the path traced out by the front end of one of the bars shown in Fig. 8.

The illustrated machine is a shoe-upper trimming machine of the type disclosed in U. S. Patent 2,260,483 issued October 28, 1941, on an application filed in the name of W. T. B. Roberts, and includes a shoe support (not shown) and a heel end abutment (not shown) which serve to hold the shoe bottom-up in the machine. As in the machine of the above-mentioned patent there is provided a cutting block 2 (Figs. 2, 6, 10 to l2) which is hollowed out to receive the toe portion of the shoe S to -be trimmed. The cutting block 2 has a sloping upper face 4 for supporting the marginal portion of the shoe upper when that portion is turned outward away from the shoe bottom in position for the trimming operation.

For trimming the marginal portion of the shoe upper after that portion has been turned outward,

the illustrated machine is provided with two knives to be described. These knives and other operating instrumentalities of the machine, as will be described, are mounted on a slide 8 (Figs.

1 to 4 and 6) which is reciprocated in a guideway 8 provided in the machine frame, by rods Hl (Fig. 1). The rods I0 connect a block Il on the underside of the slide 8 with a power-operated lever l2.

driven cam shaft I6. The knives, already mentioned, are disk knives I8 arranged in side-byside relation and located in the same horizontal plane. Each knife is secured to the lower end of a vertical shaft 20 (Fig. 3) rotatably mounted in the slide 8. The two shafts 20 are arranged equidistant from the longitudinal center line of the slide in such a way that the cutting edges of the two knives almost touch each other on a line connecting the axes of the shafts 20. The distance between the shafts 28 is approximately equal to the width of the toe portion of a shoe of average size. Thus a shoe presented to the two knives IB is trimmed simultaneously at opposite sides by those portions of the knife edges which extend from the meeting point or point of closest approach of the knives I8 to a point directly rearward of the shafts 20 (as seen from the front of the machine).

The knives I8 are positively rotated in opposite directions, the arrangement being such that the right-hand knife (as seen from the front of the machine) is rotated in a clockwise direction (as seen from above) and the left-hand knife is rotated in a counterclockwise direction. For rotating the knives in this manner the following mechanism is provided. A short stem 2| (Fig. 17) is xed in the slide 8 and has a pulley 22 rotatably mounted thereon. The pulley is rotated by a belt 24 from a suitable source of power. The belt also runs over two idler pulleys 26 which serve the purpose of preventing excessive slackness or tautness of the belt as the slide 8 is reciprocated. The pulley 22 has a pinion 28 (Fig. 2) integral with it and the pinion 28 meshes with a larger pinion 30 (Fig. 3) on the upper end ofthe shaft 2D of the right-hand knife I8. The shaft 28 for the lefthand knife has a pinion 32 on its upper end of the same size as the pinion 30 and meshing with it.

For the purpose of depressing the outturned The lever I2 is rocked about a fixed fulcrum by an eccentric I4 mounted on a power- Y tions (Fig. 8).

4 upper margin in front of the knives I8 during their cutting stroke the machine is provided with thirteen fingers 34 (Figs. 3 and 5) which are mounted for vertical movement in a carrier plate 38. The carrier plate 3 6 is secured to the slide 8. The central one of the fingers 34 lies directly behind the meeting point of the two knives (as seen from the front of the machine) and the other fingers at either side of the central finger are located as illustrated in Figs. 10 to 12 to follow the curved edges of the two trimming knives IB. Each finger 34 is urged downward relatively to the carrier plate 36 by a spring 38 (Figs. 4, 5 and 7). The fingers 34 are arranged to be raised out of contact with the work when the slide 8 is in its initial forward position. Just after the slide 8 has commenced its operative rearward movement, the fingers are lowered into contact with the Work by cam rolls 40, 42 (Figs. 2 and 5) provided at opposite sides of the carrier plate 86. These cam rolls extend into cam tracks 44, 46 (Figs. 4, 5 and 16) provided in the machine frame and extending rearwardly in the machine. The cam tracks 44, 46 are so designed that they will locate the carrier plate 36 and thus the fingers 34 in the desired vertical positions during the reciprocation of the slide 8.

Lowering and raising of the iingers 34 upon movement of the cam rolls 40, 42 along the cam tracks 44, 46 is made possible in'that the carrier plate 36 is supported on parallel links 82 (Figs. 4 to '7), arranged at opposite sides of the plate and pivotally connecting the plate with the slide 8. The cam tracks 44, 46 have pivotally mounted upper sections 39 (Figs. 2, 4 and 16) forming the upper Walls of the cam tracks. Members 4l form the fixed lower walls of the cam tracks. Springs 41 (Fig. 3) connect the carrier plate 36 with a cross plate 49 on a stop lever, to be described, and tend to raise the carrier plate 36, thus urging the cam rolls 48, 42 against the upper sections 39 of the cam tracks 44, 46.

The machine is also provided at its opposite sides with transversely movable wipers or scrapers in the form of bars 48 (Figs. 3, 8, 9 to l2), there being three bars 4B at each side of the machine.A The bars 48 are carried by the slide 8 and serve the purpose of raising the marginal portion of the shoe upper from the insole of the shoe S and turning that portion outward over the sloping upper surface of the cutting block 2. The front ends of the bars 48 move transversely of the machine and the shoe supported therein in a closed irregular path illustrated in Fig. 18 and are provided with downwardly extending projec- Each projection 50, when the bar is at the inner limit of its movement toward the longitudinal median line of the shoe, rests upon and is spring-pressed against the insole well inwardly of the overlying marginal portion of the shoe upper. The bars 48 are arranged fairly close to and rearwardly of the pressing fingers 34 (as seen from the front of the machine).

Each bar 48 is arranged to be drawn outward, i. e. laterally of the shoe and away from the longitudinal median line of the shoe, and returned inward a number of times during the operative stroke of the slide 8. The projection 50 on each bar 48 is thereby caused to move outward along the surface of the insole until it engages the overlying marginal portion of the upper at that side of the toe, whereupon it lifts that margin away from the insole, turns it outward and presses it rmly against the cutting block 2.

The three bars 48 at each side of the slide 8 .perform `this upper frlaisinguoperationsuccessive 1y. Each barrhas: its Louter 'i'end formed fas lian fecee'ntrl'cl sheave 52 'wl'richl surrounds 'fan `r:eccen- Ltricf54. '..Thethreef eccer'ltri'c'` at one 'side f of the slid'e aresecured on'a shaftf rotatably mountle'dlin brackets 58. The bracketsfare :provided fon ia lateralf extension 159 -..('Fig. A 2) of the fslide-Y 8. The-arrangement at thevothe'rside-.of thei slider-8 -is '1- the fsame. The Vthree zeccentrics 154 fat each :'sldeof the machine-aredisplacedifromfeach oth- `er .12W-about-thewaxis-nfr-the shaft-56, thus fst-aggering the' operation :0f-the bars.

-To support ieach bar'48 *and*- control its inf'and :outfmovem'ents,l a :curved slot 6 0 (Fig.=-3) :therein isenga'ged byfa :rollf621'earried by ith'ef'lower end fofvalink'64. P,'Ihe-threelinks 64 forfthefthree :bars'f48 :atreach 'side "of the machine are .pivotally mounted 'on -a -r`odf-66 -Iwhich is parallel to the fshaftf56=-andis-supportedfin.thenbrackets58. -The height'wise -Lposition lfof-:each roll #62y is 'fadj-ustable 'andftofethatfendfeachrlink 64 has a `laterally .extending tailpieceY 68 'which-:isi: pulled fbyfa :spring '|56 again/stra setscrew 1-8 carriedfinailange A-`Vl provided on=r aryokemember 10. The 1 yoke (memherflf is Falsof'pivotally fmounted on the rodf-66 and carres=a camv roll A'|-2 ('Figs.-3, 13 to l5)` freely rotatable @on a pin 14 .in the :yokemember -1U. =Th`e1spring '(6 in :urgingthe -tailpiecey 68 against Atlfiefsetscrew -18 alsourges the .roll'1`2 againsta eamace-a .provided on a 'camr-member'8'2 Lxed .in=the=machine .irai-ne. The-loam l face` #805 there- -forewcontrols the angular position .of the :yoke memberi'l-U-.andthus of.th'e links-64 aboutfthelrod 166 see Figs. 1'3Ito15). -The springsf'LG-Jarefconnested y"at their upper ends to hooks v84\-.on a bridge member `(Fig. 3) secured -Vto one of 'the brackets 158, r and .at their'lower fendsto rhooksl88 in the I tailpieees lt8. .Nor-mally the fthree rolls 62:'atv` eachy side of fthewma'chinefare .held `in -such positions, by the-means just described, -that they Aare-somewhatfh-igher :than -the .axis of `the vshaft 56 y-(see1\ig.` 3) 2By `reasonpf ythe shapes-ofthe 'slots4 60`in the bars-48 the -projectionll of each :bar dias. impar-ted lto it Non veach rotation .of its eccentric 54aaf-fmovement ina path indioatedfin fFig. v- 1-8. fIn particular, each projection when moved 'inward toward the .longitudinal .median yline yO'i-theshoe isheld a .considerable distance abovethemarginalrpor-tionfof the upper. y.It is Mthenrfmoved.fdowninto engagement with the 4vinsoles-and then back in. a substantially vhorizontal .path toward its-.initial position. During the latter tmovement, as 4already described, it .engages the marginal-.portion of ythe upper, `raises .itirom -4of-'the7blockl2. JA :single revolution ofthe shaft V56 will impart ysuch .movements successively to .the three bars 48 at .one :side 4of the .machine and the Mmovements of .thethree bars S'aredisplace'd or staggered, 1 in time, a (period 4corresl.-ponfdi-ng to 41/3 of 'one revolution ofthe shafts. V'he'two shafts Kili at oppositesidesof themachine yare .drivenby .pulleys-Hand b`elts.9'0, 9'2 .CEig "1'7) [from an lectric-motorfmot shown) and'the driving arrangement -s .suchas to .eriable'the shafts 56 to-travel"back and forth 'with' the slide '8. VVOnxnovement oi each lbar `48toward its initial ,positionaduringwhich movement-.the -upper :marginis rai-sedand turned over, the lprojection 50 of fthe bar-*48 -l.will be. raised somewhatfagainst L'the action :of :thefspring "16 askthe:fprojectionmdes :over the Ik'outturned fupper `margin,.\thus pressing thatfmarginidownlagainstzthe-cuttingfblock A(see It-fwill be `I`seenpthere'fore, that when ltheislide i8 iis movin'gftearwardzon its operative stroke, 'the Ithree ba'rs -48 i at 'Iea'ch side f fof the fshoe 'iiwill tbe moving rearward'fwith thetslideifand fwill'simulytaneou'sly be'rapidly -reciprocated laterally-fof the 4vmachin-e alo'ng paths of theft-shape indicated :in Fi'g. 1'8. Thus vduring the rearward Imovement lof? the fslide '.--each @portion V'of .the upper :margin along Jeaeh :-side of the 'l toe :por-tion 'will `v-be repeatedly operatedfu'pon-byathe barsi48- :Th-ose por-tions of 'the upper Imarginf-wl'i'mhlie immediately 4in front of ythe'-pulling-over ytacks willrnaturallytbe restrainedI ,by Ithese'tacks from 1being .turned; outward. vf'lherefmay'` not t-be zsuircient-flooseness or. extensibility` in lthe luppervmargin-:adjacenttmthe tacks :I to permit that? margin Ato be 'turned outward Vbeyond the @shoe bottom :ontmthe cutting block 2. yIn .order to support suehsporions of the `upper f margin, nevertheless, the Ncutting `block l2 `\is provided at its '-he'elward end y'with ythin ears 94 VtFigjlfl) the upper-faces of whichL constitute ra rprcilongation of the upper lface "4 .of thebloek -2- toward lthe-heel l end of Vthe .supported'shoe The--ears94 extendalso inward toward thelongitudinal Vrn edianli-neoi` theblo'ck 2. Thus the ears are located,v when-a shoef-is presented -to the machine;r over-.the=margin of the shoe bottom adjacent to ythe Afpul1ing-over tacks to support ltheoutturned upper marginsinvthat region.

`YIn .ior'deri to .give increased. assurance ithat the npper. margini.v at opposites-ides-of li'fhe-toe-fportion ofl the shoe .willbe.properlyilying .on thecutting lJilo'ck 2 v an'dfthel .ears'G 4 when Ithe knives I8 `begin .to Atrimand also in Aorder to restrain-fthe upper margin ."from vrising .during the `short interval "of 'time'. betweenthe operation 4`of .-the bars 48 Ltheref `on andthe operation I4of one Aof-tlf1eknives--|\8 thereonthefillus'trated machine is provided with 'a-ipair-ofrollersmg'.(Figs. 3,`5.and 1`0) which .are arranged to move along `the `Voutturned upper margin and yto .press fit firmly upon thetcutting .block 2 4in .advance of f each .-knife I8. Eachfroller '9'6`i-s arranged closeto Yonefside ofthe-vngers1 34 andis'located immediately in back 'of the knife 4I8 (as seen from the front of the vmachine). "Ifhus, the rol-ler .ts .substantiallyl intowthe narrow ,space between Vthelk-nife l8and the `nearestfone of thebars 48 (seef'Fig.10). The taxes f the .roller-s are. somewhat Ainclined, -as illustrated 4rin `Fig.''5, 'lathe angle of Hinclination corresponding substantially to the-angle xof the sloping lface 4o`f '.the'block 2. 'Eachlroller is freelyrotatable-.cnet .pin '9`8`he1`d Lin l.ears |00 .provided ony a vertically ,movablefsli'de Ill2 nmounted in aguideway L04 Jin the-carrierplate `3`G. 'IF-heslide |02 lis depressed to cause the rollers Q6 Ato press against the turned-out.. upper .margini by aspring M16 v` seated in aborelin the sI-i'deflUZ and :bearing-atfits upper end against an adjustable screw 108. intheplate 36. "The"verticalmovemerits of the slides [02 lare limited in both .directions by studs "'(n't shown) `lrrthe plate"36;wl'1ih studsengage vetiCaYslots '(L'rt vvSinni/vri) r`pl'oi'fi't'led "ini the" slides "I 02 Toward f the "end nof "the V'cutting stroke f the l| (Figs. 4 and 6) against the tension of the springs 41 which tend to pull the carrier plate 36 upward, thus tending to swing the two sections .39 upward. The latches |01| are pivotally mounted on brackets |03 secured to the rear ends of the lower track sections 4|. A projection |05 of each latch is connected by a spring |01 to the corresponding track section 39. Just prior to the completion of their rearward movement, the cam rolls 40, 42 strike the latches |0|, thus releasing the upper track sections 39. The springs 41 now can raise the carrier plate 36, thereby causing the track sections 39 to swing up about their pivots until these sections engage projections |09 on the latches |0 l. During the following forward movement of the slide 8 into initial position, the cam rolls 40, 42 move along the now inclined track sections 38 with the fingers 34 and rollers 96 well above and out of engagement with the toe end portion of the shoe. When the rolls 48, 42'have been moved forward beyond the pivots of the track sections 39, these sections are again pulled down into engagement with the latches |0| by the springs |01 and are once again parallel with the lower track sections 4 I.

It is also desirable that the three lbars 48 at each side of the slide 8 shall occupy raised positions while the slide 8 is returning to its initial position so that they shall not contact the upper at that time. Moreover, it is desirable that they shall be automatically lowered into operative position as the slide 8 commences a new operative movement rearwardly in the machine. To

-this end the above-mentioned cam faces 80, along which the cam rolls 12 on the yoke members 10 run, have each an outwardly sloping portion ||4 (Fig. 2) so arranged that the yoke members 10 will be tilted outward as the slide 8 approaches the end of its rearward movement (see Fig. 15)` The tilting of the yoke members 10 in turn causes a rocking movement of the links 64, thus lifting the rolls 62 and the bars 48. As the bars are so lifted they pivot about their operating eccentrics 54.

The bars 48 are held in their raised positions by latching fingers ||6 (Figs. 9, 13 to 15) pivotally mounted on the brackets 58. Each finger ||6 is pivotally mounted on a'rod ||8 (Fig. 9) and the outer end of each finger normally lies 4beneath a shoulder |20 formed on the yoke member 10 below the pivot of the latter. A tension spring |22 connecting a hook |24 on the nger H6 with a pin |26 on the yoke member 10 urges the outer end of the finger upward opposite the shoulder when'the yoke member 10 is tilted outward as above described, thus retaining the yoke member 10 in its tilted position and accordingly holding the bars 48 in their raised inoperative positions while the slide 8 returns to its initial position.

To release the bars 48 from their inoperative positions as the slide 8 commences a new operating stroke the fingers ||6 are connected to a clutch-controlling treadle (not shown) which the operator depresses when he initiates a new power operation of the machine. To this end there is provided a two-armed lever |30, |32 (Fig. 14), which is pivoted on a stud |28 secured in the fixed cam member 82. The horizontal arm |32 of the lever engages the finger ||6 and is held in engagement therewith by a spring |34 (Fig. 13) connected to a lug |36 on the xed member 82. The vertical arm of the lever is forked and supports a link |38. The link |38 has a CTI shoulder |40 engaging the front face of the arm 30. Each link is pivotally connected to an arm |42 (Fig. 1) of a bell crank lever. The bell crank lever is rotatably mountedl on a rod |44 secured in the machine frame. The other arm |46 of the bell crank lever is connected by a rod |48 to the clutch-tripping mechanism of the machine in such a way that the rod |48 is pulled down when the clutch is being tripped by the depression of the treadle. Thus the arms |30 of the two levers are rocked to release the fingers H6.

The release of the fingers ||6 takes place just before the rearward movement of the slide 8 begins. Upon release of the fingers ||6 the yoke members 10 are again allowed to swing into their initial positions in which the rolls 12 eng-age again the cam faces 80. Thus, the projections 50 ofthe bars 48 are lowered into a position in which they are ready to perform their operation as soon as'the knives I8 commence to move toward the toe end of the shoe. Very shortly thereafter the rollers 96 and the fingers 34 are also lowered into operative position by the cam tracks 44, 46.

The illustrated machine is preferably also provided with an insole-engaging roll |50 (Figs 6 and 7) the purpose of which is to assist in preventing the toe end of the shoe from being raised during the trimming operation. The roll |50 is rotatably mounted at |52 on the bifurcated lower end of a vertical rod |54 which passes through and is guided for vertical movement in a bore provided in a circular boss |58 (Fig. 4) rotatably mounted in a lug |60 on the carrier plate 36. A tension spring |62 connecting the rod |54 with a stop lever |64 maintains the rod in engagement with an adjusting screw |66 carried by the lever |64. Adjustment of the screw will, therefore, adjust the heightwise position of the roll |50 relatively to the knives |8 and the other operating instrumentalities of the machine.

The stop lever |64 extends over the carrier plate 36 and is pivotally mounted at its forward end on a pin |68 (Fig. 4) secured in the slide 8. A downwardly extending arm |10 of the lever |64 has a short slot engaged by a pin |14 (Fi-g. 16) eccentrically mounted on the end of a shaft |16 mounted in the slide 8. On the opposite end of the shaft |16 is secured a short arrn |18 carrying a cam roll which during the reciprocation of the slide 8 moves along the forward portion of the cam track 46. This cam track has a short sloping portion which is arranged in such a position that the cam roll |80 moves along that sloping portion when the roll |50 is approaching the marginal portion of the upper, thus turning the shaft |16 and lifting the stop lever |64. This causes the roll |50 to be raised to such a position that it passes over the outturned upper margin on the cutting block 2 without interfering with that margin as the slide 8 completes its rearward movement and also when the slide 8 begins its reverse movement into initial position.

Having thus described our invention, what we claim as new and desire to secure by Letters Patent of the United States is:

1. In a shoe upper trimming machine, a cutting block adapted to support the toe portion of a partially fabricated shoe presented bottom up thereto, cutting means for trimming the lining of the shoe thus supported, movable Scrapers located at opposite sides of the supported shoe, and power-operated means for causing the Scrapers to make repeated movements transversely of the supported shoe while moving as a unit longitudinally of the shoe so as to raise progressively thek opposite margins# of the 'toet portion,v ofi' the rippen-.from the shoe bottom'u andi' tui-m said margins outwardsagainstithecuttingeblockz- 2i.: In ashoe upperitrimmingizzma-cl-rine; aicuttng block ,adapted-to support theitoezportlonl otaipar tially lfabricated shoepresented'bottomiupthereto, cutting means-for:trimmingathefliningioftlie shoe thusxsupported; af; reciprocatingi slide supporting said'l cutting means,-` movableScrapers,v carriedi by, the slide andlocated` atoppositefsidesithereof and poweroperated? means fony causing th'e' scrapers to make repeatedmovementstransverselyrofitiie supported shoe while moving asfapunitrwithathe slide *longitudinallyk oftheshoeiso as to raise the opposite marginsofthe ftoerportion of the upper from the shoe bottom and turn said margins outward against thecuttingfbloclg. f

3. In a shoe upper trimming machine, a cutting block adapted to support the toe portion of a partially fabricated shoe presented bottom up thereto, a slide adapted to reciprocate in the longitudinal direction of the supported shoe, a pair of rotary knives supported on the slide, means for so rotating the knives in opposite directions that each knife severs one of the opposite margins of the upper in a direction away from the longitudinal median line of the shoe, movable scrapers carried by the slide and located at opposite sides thereof, and power-operated means for causing the scrapers to make repeated movements transversely of the supported shoe while moving With the slide longitudinally of the shoe and ahead of the knives so as to raise the opposite margins of the toe portion of the upper from the shoe bottom and turn said margins outward against theI cutting block.

4. In a shoe upper trimming machine, a cutting block adapted to support the toe portion of a partially fabricated shoe presented bottom up thereto, a slide adapted to reciprocate in the 1ongitudinal direction of the supported shoe, a pair of rotary knives supported on the slide, means for so rotating the knives in opposite directions that each knife severs one of the opposite margins of the upper in a direction away from the longitudinal median line of the shoe, power-operated scrapers carried by the slide and located at opposite sides thereof, and means for reciprocating the scrapers in a closed orbital path transversely of the supported shoe while the scrapers are moving with the Slide longitudinally of the shoe to cause the scrapers to raise the opposite margins of the toe portion of the upper from the shoe bottom and turn said margins outward against the cutting block.

5. In a shoe upper trimming machine, a cutting block adapted to Support the toe portion of a partially fabricated shoe presented bottom up thereto, a slide adapted to reciprocate in the longitudinal direction of the supported shoe, a pair of rotary knives supported on the Slide, means for So rotating the knives in opposite directions that each knife severs one of the opposite margins of the upper in a direction away from the longitudinal median line of the shoe, and a plurality of scrapers asociated with each knife and arranged to make repeated movements transversely of the supported shoe while moving with the slide longitudinally of the shoe so as to raise the opposite margins of the toe portion of the upper from the shoe bottom and turn said margins outward yagainst the cutting block ahead of the trimming action of the knives thereon.

6. In a shoe upper trimming machine, a cutting block adapted to support the toe portion of 10 aipartiallyifabricatedishoe :presentedibottomz up tlieretcuiA cutting;- meansi fora: trimming the@v lining ortlier sheet; thus supported, movable., scrapers locatedi atsomzxositensides of l' theisupportedi: shoe', power.operateurv means',l for causing:L the a Scrapers todmakairepeatedmovements: transversely ofithe supportedishoe;Whilefisoflmovirlg asiiannitslongi; tud-inallytofthezshoesasato fraise progressively;l the opposite"1 marginsroff'theetoe :lportioniof rtheaupper from theshoe'zbottom@andxturnisaid:fnarginsioute wardi against; ther; cutting; block,-` and yielding means'. actingv on i thegscrapers.; to; cause-,theme4 to presstthezjiturnedeout .uppers margin.` againsti. the cutting block:`

7': Inu a: snoei-uppers .trimmingmachina, at cut'.- tingixrbloclri'adapted :toi Supportetheitoeiportioni of at partiallycfabricatedg shoes presented bottcirrn up tirer-'etesI cutting-1 meansr. fors trirnmir':gatherA lining of the shoe thus supported, movable Scrapers located at opposite sides of the supported shoe, power-operated means for causing the scrapers to make repeated movements transversely of the supported shoe while so moving as a unit longitudinally of the shoe as to raise progressively the opposite margins of the toe portion of the upper from the shoe -bottom and turn said margins outward against the cutting block, and rollers adapted to move with the scrapers in the longitudinal direction of the Shoe just in advance of the knives to hold the turned-out upper margin against the cutting block.

8. In a Shoe upper trimming machine, a cutting block adapted to support the toe portion of a partially fabricated shoe presented bottom up thereto, cutting means for trimming the lining of the shoe thus supported, a reciprocating slide supporting said cutting means, scrapers carried by the slide and located at opposite sides thereof,

power-operated means for causing the Scrapers to make repeated movements transversely of the Supported shoe while so moving as a unit with the slide longitudinally of the shoe as to raise the opposite margins of the toe portion of the upper from the shoe bottom and turn said margins outward against the cutting block, and rollers carried by the slide and located at opposite sides thereof between the knives and the scrapers, the rollers being adapted to hold the turned-out upper margin against the cutting block in advance of the knives during their cutting stroke.

9. In a shoe upper trimming machine, a cutting block adapted to Support the toe portion of a partially fabricated shoe presented bottom up thereto, cutting means for trimming the lining of the shoe thus supported, movable scrapers located at opposite sides of the Supported Shoe, power-operated means for causing the Scrapers to make repeated movements transversely of the supported shoe while so moving as a unit longitudinally of the shoe as to raise progressively the opposite margins of the toe portion of the upper from the Shoe bottom and turn said margins outward against the cutting block, and means for automatically raising the Scrapers out of contact with the shoe upper on completion of the trimming operation.

l0. In a Shoe upper trimming machine, a cutting block adapted to support the toe portion of a partially fabricated shoe presented bottom up thereto, cutting means for trimming the lining of the shoe thus supported, movable scrapers located at opposite sides of the supported shoe, poweroperated means for causing the scrapers to make repeated movements transversely of the supported shoe while so moving as a unit longitudinally of the shoe as to raise progressively the opposite margins of the toe portion of the upper from the shoe bottom and turn said margins outward against the cutting block, rollers adapted to move with the scrapers in the longitudinal direction of the shoe just in advance of the knives to hold the turned-out upper margin against the cutting Iblock, and means for automatically raising the rollers out of contact with the shoe upper on completion of the trimming operation.

11. In a shoe upper trimming machine, a cutting block adapted to support the toe portion of a partially fabricated shoe presented bottom up thereto, a slide adapted to reciprocate in the longitudinal direction of the supported shoe, cutting means supported on the slide and adapted to trim the shoe upper margin on operative movement of the slide toeward of the the shoe. scrapers carried by the slide and located at opposite sides thereof, power-operated means for causing the scrapers to raise the opposite margins of the shoe upper from the shoe bottom and to turn said margin outward against the cutting block, means for automatically raising the scrapers out of contact with the shoe upper on completion of the toewarcl movement of the slide, means for holding the scrapers in their raised positions on heel- Ward movement of the slide, and means for automatically releasing the scrapers from their raised position on initiation of another toeward movement of the slide.

HAROLD ERNEST ELLIOTT.

ERNEST MOORE.

No references cited 

